Lens angle of view·7mm · APS-C

7mm · APS-C

Ultra-wide

Diagonal angle 127.2°
Diagonal angle
127.2°
Horizontal angle
118.4°
Vertical angle
96.2°
Crop factor
1.53×
35 mm equivalent
11mm
Frame width at 2 m
6.71 m
23.5 × 15.6 mm

One step smaller than full frame; the same lens covers a narrower field and looks longer.

Fits a great deal into one frame; edges stretch, so keep people away from the corners.

Same field of view elsewhere

A different sensor needs a different focal length to frame the same scene.

Nearby focal lengths

How to read this

  • Focal length alone does not fix the angle of view — the same 50 mm sees less on a smaller sensor.
  • The crop factor is the sensor diagonal divided into the 35 mm diagonal; multiply the focal length by it for the equivalent.
  • Longer lenses magnify shake. Handheld, a shutter speed faster than one over the equivalent focal length is the usual rule.
  • A wider angle is not purely more scene: the edges stretch, so faces belong near the middle.

Frequently asked questions

Q. What angle of view does 7 mm give on APS-C?

127.2° diagonally, 118.4° horizontally and 96.2° vertically.

Q. What is 7 mm in 35 mm terms?

11 mm — the focal length multiplied by this sensor’s crop factor of 1.53.

Q. What is this combination good for?

It falls in the ultra-wide group. Standing two metres away, it frames 6.71 metres across.

Q. How do I get the same framing on another camera?

A different sensor needs a different focal length; the equivalent combinations are listed further down this page.